The 1 inch 90 elbow male-female 1 inch rigid pipe and 1 inch flexible rigid pipe.
Best to use a plumbing cleaner then pipe cement to assemble. Pipework pushes inside this part at the female end and at the male end it pushes in to a female socket.
Internal Diameter: 25 mm (male end) 32 mm (female end)
Outer Length: 75 mm
Depth / Diameter: 32 mm (male end) 40 mm (female end)